Question: Which of the following is not a common disease of mungbean?
Options:
Yellow mosaic
Tungro
Powdery mildew
Cercospora leaf spot
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📌Other Options Explanations:
-(a) Yellow mosaic: Yellow mosaic disease can infect mungbean, causing yellowing, stunting, and yield loss.
-(c) Powdery mildew: Powdery mildew is a fungal disease that can infect mungbean leaves, causing white powdery patches and reduced growth.
-(d) Cercospora leaf spot: Cercospora leaf spot is a fungal disease that can cause brown spots on mungbean leaves, affecting their health and yield.
🛑 Additional Information::::
– “Tungro” is known as degenerated growth and the disease is called as yellow-orange leaf in Thailand. It is majorly observed in India, Thailand, Pakistan, Indonesia, etc.- Rice tungro bacilliform virus (RTBV) and Rice tungro spherical virus (RTSV) these two viruses were found to be associated with the Rice tungro disease. Here, RTBV is a double stranded (ds) DNA genome virus whereas the RTSV is a single stranded (ss) RNA virus.- Rice infected with both RTBV and RTSV or by RTBV alone can produce a significant reduction of more than 85% in the yield whereas if they are infected with RTSV alone this much reduction is not seen.- Its symptoms depend on host cultivar (a plant variety that have been produced in cultivation) seedlings show stunting with yellowing of leaves, reduced tiller(each segment containing its own two part leaf), yellowing of leaves is a very common symptom.- RTBV ds DNA bacilliform virus which causes mild stunting and yellowing of leaves and RTSV ss RNA virus cause very mild stunting.- Tungro viruses are transmitted by six leafhoppers species. Virus is transmitted from one plant to another through the mouth of green leafhoppers i.e. when they feed on the diseased plant virus particle gets attached to their mouth part and they fly and feed on another plant , the virus particle from their mouth gets introduced into the healthy plant.- Insecticides applied to the roots of plants provide the most efficient uptake and also much slower the rate of degradation.